Carding machine



July 10, 1928.

J. SCHMITT 'CARDING MACHINE Filed Aug. s, 1926 Patented July 1Q, 1928.

warren STATES PATENT errice JOSEPH SCHMITT, OF BRUNSTA'IT, FRANCE.

CARDING MACHINE. 7,

Application filed August 5, 1926, Serial No. 127,440, and in France August 19, 1925.

The present invention relates. to an improvement in cotton carding machines, the said improvement residing therein, that carding bars, which are movably supported, are provided under the breaker cylinder in such a manner that they are normally in carding or working position, but are intermittently at regular intervals brought to a cleaning position, so that any flocks which may be adhering may be removed.

The object of the invention is to attain a greater etliciency of the breaker cylinder, resulting from the fact that the flocks are better spread, divided and carded than has been the case heretofore, and that they reach the large cylinder better freed from fibre than with an ord nary breaker. The well divided flocks no more tend to clog the large cylinder, so that a product better carded than heretofore may be obtained.

Two embodiments of theinvention are, by way of example only, illustrated by the accompanying drawing, wherein:

Figs. 1 and 2 are respectively an elevation and a side view of one form of the device accord ng to the invention applied to the breaker cylinder of a card ng machine; and

Fig. 3 is an elevation showing'a portion of a breaker cylinder, with a modified form of the device according to the invention applied thereto.

Referring to the said drawing, (77 indicates the large cylinder, Z) indcates the breaker cylinder and 0 indicates the feeder. In the space between the breaker bars (5 under the breaker cylinder 22 are arrangedcarding bars such as 6 e 6,. These carding bars 6 are provided with teeth f as shown in Fig. 2. In the position shown in tulllines in ig. 1, the carding bars 6 e 0 are in carding or work'ng position, in which they spread and divide the flocks and remove the fibre therefrom. After a time, the carding bars should be cleaned to remove adhering flocks. For this purpose, they are movably supported, i. e. they are capable of rotatlng about the suspension trunnions g to place them in the cleaning position shown in dot and dash lines. The said bars are placed in the lastnamed position through the medium of the pivoted lever h, provided with a pawl i subected to the influence of aspring 0 tending to keep the said pawl against an abutment Z of the lever 71,. Each time thelatter is operated, the pawl i engages the carding bars 0,, c 6,, to place them in the cleaning position, and the said bars are subsequently brought back from the cleaning to the working position by the spring n 2).

The lever h, pivoted at m may be operated by any member of the card ng machine hav ing a reciprocatory motion, for instance by the device "for cleaning the travelling flats.

There are constructions of carding machines which do not allow the adaptation of the device in the form illustrated in Fig. 1, which in such cases must be suitably modified. One manner of modifying the same is illustrated by Fig. 3, wherein the carding bar 0 is at its ends formed in such a manner that it may slide Within a slotted sector p of which the centre of the are described by the slot coincides with the points of the .teeth of the bar 0.

I claim:

1. In carding machines, the combination with a breaker cylinder and breaker-bars under the said cylinder of movably supported toothed carding-bars arranged in the intervals between the breaker-bars, and means for oscillating the said carding-bars from a working to a cleaning position and reciprocally, substantially as described.

2. In card ng machines, the combination with a breaker cylinder and breaker-bars under the said cylinder of movably supported toothed carding-bars arranged in the intervals between the breaker-bars, a pivoted lever fitted with a spring-pressed pawl adapted positively to engage the said caroling-bars in one direction to oscillate them from a working to a cleaning position, and springs acting on the said carding bars and tending to return them to their working position.

In testimony whereof I have signed here unto my name. JOSEPH SCHMITT, 

